胶原蛋白流延薄膜的研制

采用流延成型法将胶原蛋白水溶液进行流延、凝固、后处理、干燥等工序制备出了胶原蛋白薄膜;测试了胶原蛋白薄膜的红外光谱和拉伸强度、断裂强度、断裂伸长率等力学性能;讨论了后处理液质量浓度、后处理时间对胶原蛋白薄膜力学性能的影响.结果表明:胶原蛋白分子间发生了交联反应;随着后处理时间延长和后处理液质量浓度增大,胶原蛋白薄膜的拉伸强度、断裂强度和断裂伸长率等力学性能得到改善和提高;对经过后处理的胶原蛋白薄膜进行浸水后,其耐水性有明显提高.红外光谱说明胶原蛋白分子间发生了交联.

Development of Collagen Protein Casting Film

Collagen protein casting film was prepared from liquor collagen protein by means of the casting method consisting of casting,solidification,post-treatment and drying,etc.The mechanical properties,such as the tensile strength,elongation at break,and the infra-red spectrum of the film were measured.The effects of the concentration of treatment fluid and treatment time on the mechanical properties of the film were discussed.The re- sults showed there had erosslinking reaction among the moleculars of the collagen protein;the tensile strength, breaking strength and elongation at break of the film increased with the increase of the treatment time and the con- centration of treatment fluid.The resistance to water increased clearly after the post-treatment.The result of infra- red spectrum showed the moleculars of the collagen protein film had been crosslinked.